src/thirdparty/mathexpr/mathexpr_c.h File Reference

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <complex>
#include <float.h>

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Classes

class  CVar
class  COperation
class  CFunction

Defines

#define double_complex   std::complex<double>
#define atanl   atan
#define asinl   asin
#define acosl   acos
#define expl   exp
#define logl   log
#define powl   pow
#define pow10l(x)   pow(10,x)
#define fabsl   fabs
#define cosl   cos
#define sinl   sin
#define tanl   tan
#define fmodl   fmod
#define sqrtl   sqrt

Typedefs

typedef CVar * PCVar
typedef COperation * PCOperation
typedef CFunction * PCFunction

Enumerations

enum  COperator {
  ErrOp, Juxt, Num, Var,
  Add, Sub, Opp, Mult,
  Div, Pow, Sqrt, NthRoot,
  Real, Imag, Conj, Abs,
  Arg, Sin, Cos, Tg,
  Ln, Exp, Acos, Asin,
  Atan, E10, Fun
}

Functions

double_complex tan (double_complex)
double_complex acos (double_complex)
double_complex asin (double_complex)
double_complex atan (double_complex)
typedef void ((*pfoncld)(double_complex *&))
char * PrettyPrint (double_complex)
char * MidStr (const char *s, int i1, int i2)
char * CopyStr (const char *s)
char * InsStr (const char *s, int n, const char c)
signed char EqStr (const char *s, const char *s2)
signed char CompStr (const char *s, int n, const char *s2)
char * DelStr (const char *s, int n)

Variables

const double_complex ErrVal = double_complex(DBL_MAX,0)

Define Documentation

#define acosl   acos

Definition at line 42 of file mathexpr_c.h.

#define asinl   asin

Definition at line 41 of file mathexpr_c.h.

#define atanl   atan

Definition at line 40 of file mathexpr_c.h.

#define cosl   cos

Definition at line 48 of file mathexpr_c.h.

#define double_complex   std::complex<double>

Definition at line 32 of file mathexpr_c.h.

Referenced by acos(), ArcCosinus(), asin(), atan(), BCDouble(), BCFun(), BCSimple(), COperation::BuildCode(), COperation::COperation(), CVar::CVar(), COperation::Diff(), COperation::DiffConj(), main(), operator/(), PrettyPrint(), Puiss10(), Puissance(), RacineN(), and COperation::Val().

#define expl   exp

Definition at line 43 of file mathexpr_c.h.

#define fabsl   fabs

Definition at line 47 of file mathexpr_c.h.

#define fmodl   fmod

Definition at line 51 of file mathexpr_c.h.

#define logl   log

Definition at line 44 of file mathexpr_c.h.

#define pow10l ( x   )     pow(10,x)

Definition at line 46 of file mathexpr_c.h.

#define powl   pow

Definition at line 45 of file mathexpr_c.h.

#define sinl   sin

Definition at line 49 of file mathexpr_c.h.

#define sqrtl   sqrt

Definition at line 52 of file mathexpr_c.h.

#define tanl   tan

Definition at line 50 of file mathexpr_c.h.

Typedef Documentation

typedef CFunction* PCFunction

Definition at line 79 of file mathexpr_c.h.

typedef COperation* PCOperation

Definition at line 77 of file mathexpr_c.h.

typedef CVar* PCVar

Definition at line 70 of file mathexpr_c.h.

Enumeration Type Documentation

enum COperator

Enumerator:
ErrOp 
Juxt 
Num 
Var 
Add 
Sub 
Opp 
Mult 
Div 
Pow 
Sqrt 
NthRoot 
Real 
Imag 
Conj 
Abs 
Arg 
Sin 
Cos 
Tg 
Ln 
Exp 
Acos 
Asin 
Atan 
E10 
Fun 

Definition at line 72 of file mathexpr_c.h.

00072               {ErrOp,Juxt,Num,Var,Add,Sub,Opp,Mult,Div,Pow,Sqrt,
00073                NthRoot,Real,Imag,Conj,Abs,Arg,Sin,Cos,Tg,Ln,Exp,Acos,Asin,Atan,E10,Fun};

Function Documentation

double_complex acos ( double_complex   ) 

Definition at line 27 of file mathexpr_c.cpp.

References double_complex, log(), and sqrt().

00028 {return -double_complex(0,1)*log(z+double_complex(0,1)*sqrt(double_complex(1,0)-z*z));}

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double_complex asin ( double_complex   ) 

Definition at line 29 of file mathexpr_c.cpp.

References double_complex, log(), and sqrt().

00030 {return -double_complex(0,1)*log(double_complex(0,1)*z+sqrt(double_complex(1,0)-z*z));}

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double_complex atan ( double_complex   ) 

Definition at line 31 of file mathexpr_c.cpp.

References double_complex, log(), and sqrt().

00032 {return -double_complex(0,1)*log((double_complex(1,0)+double_complex(0,1)*z)/sqrt(double_complex(1,0)+z*z));}

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signed char CompStr ( const char *  s,
int  n,
const char *  s2 
)

Definition at line 59 of file mathexpr.cpp.

Referenced by COperation::COperation(), IsFunction(), IsolateVars(), IsVar(), and ROperation::ROperation().

00060 {if(n<0||n>=(int)strlen(s)||n+(int)strlen(s2)>(int)strlen(s))return 0;
00061     int i;
00062     for(i=0;s2[i];i++)if(s[i+n]!=s2[i])return 0;
00063     return 1;
00064 }

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char* CopyStr ( const char *  s  ) 

Definition at line 38 of file mathexpr.cpp.

Referenced by CFunction::CFunction(), COperation::COperation(), CVar::CVar(), COperation::Expr(), ROperation::Expr(), CFunction::operator=(), RFunction::operator=(), RFunction::RFunction(), ROperation::ROperation(), RVar::RVar(), CFunction::SetName(), RFunction::SetName(), and SimplifyStr().

00039 {char*s1=new char[strlen(s)+1];char*s12=s1;const char*s2=s;
00040     while((*s12++=*s2++));return s1;}

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char* DelStr ( const char *  s,
int  n 
)

signed char EqStr ( const char *  s,
const char *  s2 
)

Definition at line 52 of file mathexpr.cpp.

Referenced by COperation::ContainVar(), ROperation::ContainVar(), COperation::COperation(), operator==(), and ROperation::ROperation().

00053 {if(strlen(s)!=strlen(s2))return 0;
00054     int i;
00055     for(i=0;s[i];i++)if(s[i]!=s2[i])return 0;
00056     return 1;
00057 }

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char* InsStr ( const char *  s,
int  n,
const char  c 
)

char* MidStr ( const char *  s,
int  i1,
int  i2 
)

Definition at line 25 of file mathexpr.cpp.

Referenced by COperation::COperation(), and ROperation::ROperation().

00026 {
00027     if(i1<0||i2>=(int)strlen(s)||i1>i2){
00028         char* cp = new char[1];
00029         cp[0] = '\0';
00030         return cp;
00031     }
00032     char*s1=new char[i2-i1+2];
00033     int i;
00034     for(i=i1;i<=i2;i++)s1[i-i1]=s[i];
00035     s1[i2-i1+1]=0;return s1;
00036 }

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char* PrettyPrint ( double_complex   ) 

Definition at line 1010 of file mathexpr_c.cpp.

References double_complex, formatimag(), formatreal(), COperation::imag, and COperation::real.

Referenced by COperation::Expr(), and main().

01011 {
01012     char*s=new char[30],*s1=formatreal(real(x)),*s2=formatimag(imag(x));
01013     if(!strlen(s1)&&!strlen(s2))sprintf(s,"0");
01014     else if(x==double_complex(0,1))sprintf(s,"i");
01015     else if(!strlen(s1))sprintf(s,"(%s)",s2);
01016     else if(!strlen(s2))sprintf(s,"%s",s1);
01017     else if(imag(x)>0)sprintf(s,"(%s+%s)",s1,s2);
01018     else sprintf(s,"(%s%s)",s1,s2);
01019     delete s1, delete s2;
01020     return s;
01021 }

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double_complex tan ( double_complex   ) 

Definition at line 25 of file mathexpr_c.cpp.

References cos(), and sin().

00026 {return sin(z)/cos(z);}

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typedef void ( (*)(double_complex *&)  pfoncld  ) 

Variable Documentation

const double_complex ErrVal = double_complex(DBL_MAX,0)

Definition at line 57 of file mathexpr_c.h.

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